Here's a support request from Jim Carlson:
---------- Forwarded message ----------
From: James Carlson <[EMAIL PROTECTED]>
Date: Nov 7, 2007 7:03 AM
Subject: Bug?
To: William Stein <[EMAIL PROTECTED]>
Hi William,
Attached is a file with odd behavior.
p = a prime
n = a postive integer
q = p^n
K = GF(q)
f = x^3 + y^3 + z^3
points(f) -- returns list of poitns of f(x,y,z) == 0
The above works with p = 5, n = 2. But points
crashes with p = 5, n = 3. The error message is attached.
I also did this:
for i in range(0,1953125):
....: bar.append(K.random_element)
....:
sage: len(bar)
1953125
Thus I don't think SAGE ran out of memory.
I am using SAGE 2.8.7 on a macbook pro, OS 10.5
Best regards,
Jim
<type 'exceptions.IndexError'> Traceback (most recent call
last)
/Volumes/jxxcarlson/_jc/_current/sage/<ipython console> in <module>()
/Volumes/jxxcarlson/_jc/_current/sage/xgalois.py in points(f)
17 for yy in K:
18 for zz in K:
---> 19 if f(xx,yy,zz) == Integer(0):
20 pts.append([xx,yy,zz])
21 return pts
/Volumes/jxxcarlson/_jc/_current/sage/finite_field_givaro.pyx in
finite_field_givaro.FiniteField_givaroElement.__richcmp__()
/Volumes/jxxcarlson/_jc/_current/sage/element.pyx in
element.Element._richcmp()
/Volumes/jxxcarlson/_jc/_current/sage/element.pyx in
element.Element._richcmp_()
/Volumes/jxxcarlson/_jc/_current/sage/element.pyx in
element.Element._richcmp()
/Volumes/jxxcarlson/_jc/_current/sage/element.pyx in
element.Element._richcmp_c_impl()
/Volumes/jxxcarlson/_jc/_current/sage/finite_field_givaro.pyx in
finite_field_givaro.FiniteField_givaroElement._cmp_c_impl()
/Volumes/jxxcarlson/_jc/_current/sage/finite_field_givaro.pyx in
finite_field_givaro.FiniteField_givaro.log_to_int()
<type 'exceptions.IndexError'>: n=126 must be < self.order()
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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xgalois.sage
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